Measurement and Instrumentation The coil of a moving coil meter has 100 turns, is 40 mm long and 30 mm wide. The control torque is 240×10-6 N-m on full scale. If magnetic flux density is 1Wb/m2 range of meter is 3 mA. 2 mA. 4 mA. 1 mA. 3 mA. 2 mA. 4 mA. 1 mA. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A 0 - 100 V voltmeter has a guaranteed accuracy of 2 % of full scale reading. The voltage measured by the voltmeter is 75 V. The limiting error is in percentage 1 %. 2 %. 2.66 %. 3.33 %. 1 %. 2 %. 2.66 %. 3.33 %. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The maximum percentage error in the sum of two voltage measurements when V1 = 100V ± 1% and V2 = 80V ± 5% is ± 2.8% ± 6% ± 4% ± 3% ± 2.8% ± 6% ± 4% ± 3% ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation A spring controlled indicating instrument has a deflection of 90deg for maximum current I. The corresponding deflection for a gravity controlled instrument is 120° 30° 90° 0° 120° 30° 90° 0° ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation To the y input of a CRO a signal defined by 10sin100t is applied. To the x input the signal 10cos100t is fed. The gain for both x-channel and y-channel is the same. The screen shows sinisoidal. a circle. an ellipse. a straight line. sinisoidal. a circle. an ellipse. a straight line. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The inductance of a certain moving iron ammeter is expressed as L = 2+5θ-θ2 µH. The control spring torque is 2 × 10-6 Nm/radian. Find the deflection in radians for a current of 2A. 2 4 5 1 2 4 5 1 ANSWER DOWNLOAD EXAMIANS APP
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